Electricity generation from Nopal biogas effluent using a surface modified clay cup (cantarito)microbial fuel cell

Sathish Kumar Kamaraj, Alejandro Esqueda Rivera, Selvasankar Murugesan, Jaime García-Mena, Otoniel Maya, Claudio Frausto-Reyes, José Tapia-Ramírez, Hector Silos Espino, Felipe Caballero-Briones

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

A modified clay cup (cantarito)microbial fuel cell (C-MFCs)was designed to digest the biomass effluent from a nopal biogas (NBE). To improve the process, commercial acrylic varnish (AV)was applied to the C-MFCs. The experiment was performed as:Both-C-MFCs, painting of AV on both sides of the clay cup; In-C-MFCs, painting of AV on the internal side, and Out-C-MFCs painting of AV on the external side. The order for the maximum volumetric power densities were Both-C-MFCs (1841.99 mW/m 3 )>Out-C-MFCs (1023.74 mW/m 3 )>In-C-MFCs (448.90 mW/m 3 ). The control experiment without applied varnish did not show a stable potential, supporting the idea that the acryloyl group in varnish could favor the performance. Finally, a 4-digits clock was powered with two, Both-C-MFCs connected in series; the microbial diversity in this format was explored and a well-defined bacterial community including members of the phyla Actinobacteria, Bacteroidetes, Firmicutes, Proteobacteria, Synergistetes and candidate division TM7 was found.

Original languageEnglish
Article numbere01506
JournalHeliyon
Volume5
Issue number4
DOIs
StatePublished - Apr 2019

Keywords

  • Energy

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